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. TABLE 3 <br /> ' LABORATORY ANALYSES - GROUNDWATER <br /> Knowles Property - Stockton, CA <br /> Page 6 of 6 <br /> (in parts per billion) <br /> DATE WELL 10 BENZENE TOLUENE ETHYLBENZENE XYLENES TPHG <br /> 11/06/98 MW1 20 <05 23 18 1,000 <br /> MW4 <05 <O 6 <06 <06 <50 <br /> MW5 7,900 2,900 1,100 7,000 66,000 <br /> MWS <06 <O 6 <06 <05 <50 <br /> 02/24/99 MW1 08 <0 5 10 1 5 63 <br /> MW3 <06 <0 6 <06 <05 <50 <br /> MW4 <05 <0 6 <05 <06 <60 <br /> MW5 10,000 6,000 1,500 9,600 66,000 <br /> MW8 <06 <05 <05 <05 <50 <br /> 05/11/99 MW1 <05 <0 5 <05 <06 <60 <br /> MW4 <05 <0 6 <05 <06 <60 <br /> MW5 9,400 4,300 1,200 9,000 63,000 <br /> MW8 <05 <0 6 <05 <05 <60 <br /> 08/10/99- MW1 41 <06 63 69 260 <br /> 08/11/99 MW2 <05 <0 5 <05 <06 <60 <br /> MW3 <05 <0 6 <05 <05 <60 <br /> MW4 <06 <0 6 <06 <06 <60 <br /> MW5 7,000 2,600 690 6,600 42,000 <br /> MW8 10 26 11 38 160 <br /> Primary MCLS 1 0 100 680 1,760 NA <br /> NOTES <br /> TPHG — Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8016, Benzene, Toluene, <br /> Ethylbenzene, Xylenes analyzed by EPA Method 8020 <br /> < — Not Detected at or Above Method Detection Limits <br /> ' - Sample chromatogram does not match gasoline fingerprint <br /> 2 - Sample chromatogram contains an unidenttfaed peak which does not match gasoline fingerprint <br /> 3 = When compared to the gasoline standard, chromatogram contains a higher proportion of peaks that <br /> elute before benzene <br /> MCLS = Maximum Contaminant Levels <br /> NA = Not Applicable <br /> groundzelknowles hamlgwlab doc <br />